3-128485892-T-C
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_032638.5(GATA2):āc.706A>Gā(p.Met236Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000192 in 1,613,934 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_032638.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
GATA2 | NM_032638.5 | c.706A>G | p.Met236Val | missense_variant | Exon 3 of 6 | ENST00000341105.7 | NP_116027.2 | |
GATA2 | NM_001145661.2 | c.706A>G | p.Met236Val | missense_variant | Exon 4 of 7 | NP_001139133.1 | ||
GATA2 | NM_001145662.1 | c.706A>G | p.Met236Val | missense_variant | Exon 3 of 6 | NP_001139134.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
GATA2 | ENST00000341105.7 | c.706A>G | p.Met236Val | missense_variant | Exon 3 of 6 | 1 | NM_032638.5 | ENSP00000345681.2 | ||
GATA2 | ENST00000487848.6 | c.706A>G | p.Met236Val | missense_variant | Exon 4 of 7 | 1 | ENSP00000417074.1 | |||
GATA2 | ENST00000430265.6 | c.706A>G | p.Met236Val | missense_variant | Exon 3 of 6 | 1 | ENSP00000400259.2 | |||
GATA2 | ENST00000696466.1 | c.988A>G | p.Met330Val | missense_variant | Exon 5 of 8 | ENSP00000512647.1 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152118Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000199 AC: 5AN: 250898Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135746
GnomAD4 exome AF: 0.0000185 AC: 27AN: 1461816Hom.: 0 Cov.: 32 AF XY: 0.0000151 AC XY: 11AN XY: 727200
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152118Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74298
ClinVar
Submissions by phenotype
not provided Uncertain:2
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Observed in large population cohorts (gnomAD; internal data); In silico analysis supports that this missense variant does not alter protein structure/function; Observed in an individual with pancytopenia, lymphadenopathy, and splenomegaly (PMID: 31309983); This variant is associated with the following publications: (PMID: 31309983) -
not specified Uncertain:1
This sequence change does not appear to have been previously described in patients with GATA2-related disorders and has been described in the gnomAD database with a low population frequency of 0.0080% in African subpopulation (dbSNP rs746737860). The p.Met236Val change affects a moderately conserved amino acid residue located in a domain of the GATA2 protein that is known to be functional. In-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL) provide contradictory results for the p.Met236Val substitution. Due to these evidences and the lack of functional studies, the clinical significance of the p.Met236Val change remains unknown at this time. -
Monocytopenia with susceptibility to infections Uncertain:1
This GATA2 variant (rs746737860) is rare (<0.1%) in large population datasets (gnomAD: 6/82258 total alleles; 0.002126%; no homozygotes). This variant is not described in the literature to our knowledge, and a single submitter in ClinVar classifies the sigificance of this variant as uncertain. Two bioinformatic tools queriedpredict that this substitution would be tolerated, however the methionine residue at this position is evolutionarily conserved across all species assessed. Bioinformatic analysis predicts that this missense variant would not affect normal exon 3 splicing, although this has not been confirmed experimentally to our knowledge. The clinical significance of c.706A>G is uncertain at this time. -
Inborn genetic diseases Uncertain:1
The p.M236V variant (also known as c.706A>G), located in coding exon 2 of the GATA2 gene, results from an A to G substitution at nucleotide position 706. The methionine at codon 236 is replaced by valine, an amino acid with highly similar properties. This alteration was identified in an individual diagnosed with leukemia (Weinberg OK et al. Am J Clin Pathol, 2019 Aug;152:258-276). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
Acute myeloid leukemia Uncertain:1
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Deafness-lymphedema-leukemia syndrome;C3280030:Monocytopenia with susceptibility to infections Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at